|effect=Allows a human drinker to temporarily assume the form of another person

|effect=Allows a human drinker to temporarily assume the form of another person

|side-effects=Attempts to transform into animals or part-humans will not reverse automatically

|side-effects=Attempts to transform into animals or part-humans will not reverse automatically

|characteristics=

|characteristics=

Before addition of final ingredient:

Before addition of final ingredient:

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*Thick and mud-like

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*Thick and mud-like

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*Bubbles slowly

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*Bubbles slowly

After addition of final ingredient:

After addition of final ingredient:

* Taste and colour vary depending on the person being turned into

* Taste and colour vary depending on the person being turned into

Line 15:

Line 15:

|difficulty=Advanced

|difficulty=Advanced

|ingredients=

|ingredients=

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*[[Lacewing flies]] (stewed 21 days)

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*[[Lacewing flies]] (stewed 21 days)

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*[[Leech]]es

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*[[Leech]]es

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*Powdered [[bicorn]] horn

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*Powdered [[bicorn]] horn

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*[[Knotgrass]]

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*[[Knotgrass]]

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*[[Fluxweed]] (picked at full moon)

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*[[Fluxweed]] (picked at full moon)

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*Shredded [[Boomslang]] [[Boomslang skin|skin]]

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*Shredded [[Boomslang]] [[Boomslang skin|skin]]

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*A bit of the person one wants to turn into (typically hair)

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*A bit of the person one wants to turn into (typically hair)

|inventor=

|inventor=

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}}{{Quote|Immediately, his insides started writhing as though he'd just swallowed live [[snake]]s -- doubled up, he wondered whether he was going to be sick -- then a burning sensation spread rapidly form his stomach to the very ends of his fingers and toes -- next, bringing him gasping to all fours, came to a horrible melting feeling, as the skin all over his body bubbled like hot wax -- and before their eyes, his hands began to grow, the fingers thickened, the knuckles were bulging like bolts -- his shoulders stretched painfully and a prickling on his forehead told him that his hair was creeping down toward his eyebrows -- his robes ripped as his chest expanded like a barrel bursting its hoops -- his feet were agony in shoes four sizes too small --|Description of the feeling of drinking Polyjuice Potion from the point of view of [[Harry Potter]] turning into [[Gregory Goyle]]|Harry Potter and the Chamber of Secrets}}

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}}

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{{Quote|Immediately, his insides started writhing as though he'd just swallowed live [[snake]]s — doubled up, he wondered whether he was going to be sick — then a burning sensation spread rapidly form his stomach to the very ends of his fingers and toes — next, bringing him gasping to all fours, came to a horrible melting feeling, as the skin all over his body bubbled like hot wax — and before their eyes, his hands began to grow, the fingers thickened, the knuckles were bulging like bolts — his shoulders stretched painfully and a prickling on his forehead told him that his hair was creeping down toward his eyebrows — his robes ripped as his chest expanded like a barrel bursting its hoops — his feet were agony in shoes four sizes too small —|Description of the feeling of drinking Polyjuice Potion from the point of view of [[Harry Potter]] turning into [[Gregory Goyle]]|Harry Potter and the Chamber of Secrets}}

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'''Polyjuice Potion''' is a very complicated [[potion]] that allows the drinker to assume the form of someone else. Whileitcanaccountforbothage and gender, Polyjuice Potion cannotbeusedforahumantotakeananimalformor for a[[half-breed]] to assumehumanform.

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'''Polyjuice Potion''' is a [[potion]] that allows the drinker to assume the form of someone else. It'sacomplicatedandchallenging potion that evenadultwitches and wizards struggle to brew correctly<ref>[http://www.pottermore.com/en/book2/chapter12/moment2/polyjuice-potion/2 Pottermore - The Polyjuice Potion -J.K.Rowling'sThoughts]</ref>.Thepotionisincrediblyadvancedandhastwo separate parts that contain steps for eachpart, when brewing is complete the potion has to stewfora month before usage.<ref name="COS" />

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Noticeably, the Polyjuice Potion was used many times in the events leading up to, and during, the [[Second Wizarding War]] (and possibly the [[First Wizarding War]], although there are no documented instances of it). The potion also played a crucial role in [[Harry Potter]], [[Hermione Granger]] and [[Ronald Weasley|Ron Weasley]] in their second and [[fifth year]]. It was also used in [[Draco Malfoy]]'s plot to smuggle [[Death Eaters]] into [[Hogwarts School of Witchcraft and Wizardry]] in [[1997]], in the [[Battle of the Seven Potters]], and in Harry, Ron and Hermione's [[Infiltration of the Ministry of Magic]] and their [[Break-in of Gringotts Wizarding Bank (1998)|break-in]] of [[Gringotts Wizarding Bank]] in [[1998]].

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==Overview==

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While it can account for both age and gender, Polyjuice Potion cannot be used for a human to take an animal form.

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+

Noticeably, the Polyjuice Potion was used many times in the events leading up to, and during, the [[Second Wizarding War]] (and possibly the [[First Wizarding War]], although there are no documented instances of it). The potion also played a crucial role in [[Harry Potter]], [[Hermione Granger]] and [[Ronald Weasley|Ron Weasley]] in their second and [[Fourth year|fourth year]]. It was also used in [[Draco Malfoy]]'s plot to smuggle [[Death Eaters]] into [[Hogwarts School of Witchcraft and Wizardry]] in [[1997]], in the [[Battle of the Seven Potters]], and in Harry, Ron and Hermione's [[Infiltration of the Ministry of Magic]] and their [[Break-in of Gringotts Wizarding Bank (1998)|break-in]] of [[Gringotts Wizarding Bank]] in [[1998]].

Polyjuice Potion is among the products sold by the [[Apothecarium of Horace E. F. Slughorn]].

Polyjuice Potion is among the products sold by the [[Apothecarium of Horace E. F. Slughorn]].

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==Recipe==

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==Ingredients==

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[[File:Lacewing-flies-lrg.png|frame|Lacewing Flies |175x175px]]

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===Part 1===

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*[[Fluxweed]]

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*[[Knotgrass]]

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*[[Lacewing fly|Lacewing Flies]]

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*Leeches

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===Part 2===

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*[[Horn of Bicorn]]

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*Lacewing Flies

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*[[Boomslang skin|Boomslang Skin]]

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*Hair of person you're turning into

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==Brewing instructions==

===Preparation===

===Preparation===

Independent of its actual brewing process, the Polyjuice Potion requires a good deal of preparation prior to making it. For example, the [[Lacewing fly|lacewing flies]] must be stewed for twenty-one days prior to making the potion, and only [[fluxweed]] picked at the full moon is acceptable. The total process takes approximately one month to complete.

Independent of its actual brewing process, the Polyjuice Potion requires a good deal of preparation prior to making it. For example, the [[Lacewing fly|lacewing flies]] must be stewed for twenty-one days prior to making the potion, and only [[fluxweed]] picked at the full moon is acceptable. The total process takes approximately one month to complete.

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===Part 1===

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====Part 1, step one====

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# Add three measures of fluxweed to the cauldron (must be picked on a full moon).

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# Add 3 measures of fluxweed to the cauldron (must be picked on a full moon).

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# Add two bundles of [[knotgrass]] to the cauldron.

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# Add 2 bundles of [[knotgrass]] to the cauldron.

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# Stir three times, clockwise.

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# Stir 3 times, clockwise.

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# Wave your wand then let potion brew for eighty minutes (for a [[Pewter Cauldron]]. A [[Brass Cauldron]] will only require sixty-eight, and a [[Copper Cauldron|copper one]] only sixty.)

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# Wave your wand then let potion brew for 80 minutes (for a [[Pewter Cauldron]]. A [[Brass Cauldron]] will only require 68, and a [[Copper Cauldron|copper one]] only 60.)

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# Add four [[leech]]es to the cauldron.

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#Add two scoops of lacewing flies to the mortar, crush to a fine powder, then add two measures of the crushed lacewings to the cauldron.

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====Part1, step two====

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# Heatforthirtysecondsona low heat.

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# Add4[[leech]]estothecauldron.

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# Add 2 scoops of lacewing flies to the mortar, crush to a fine powder, then add 2 measures of the crushed lacewings to the cauldron.

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# Heat for 30 seconds on a low heat.

# Wave your wand to complete this stage of the potion.

# Wave your wand to complete this stage of the potion.

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===Part 2===

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====Part 2, step one====

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Anytimeafterbrewingthefirststageabove,make the following additions:

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#Add3measuresof[[boomslangskin]]to the cauldron.

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# Add 1 measure of [[bicorn horn]] to the mortar, crush to a fine powder, then add one measure of the crushed horn to the cauldron.

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# Heat for 20 seconds at a high temperature.

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# Wave your wand then let potion brew for 24 hours (for a Pewter Cauldron. A Brass Cauldron will only require 1224 minutes, and a copper one only 18 hours.)

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#Addthreemeasuresof [[boomslang skin]] to the cauldron.

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====Part2,steptwo====

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# Add onemeasureof [[bicorn horn]] to the mortar, crush to a fine powder, then add one measure of the crushed horn to the cauldron.

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# Add 1additionalscoop of lacewings to the cauldron.

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# Heatfortwentyseconds at a high temperature.

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# Stir3times,anti-clockwise.

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# Wave your wand then let potion brew for twenty-four hours (for a Pewter Cauldron. A Brass Cauldron will only require 1224 minutes, and a copper one only eighteen hours.)

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# Add one additional scoop of lacewings to the cauldron.

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# Stir three times, anti-clockwise.

# Split potion into multiple doses, if desired, then add the pieces of the person you wish to become.

# Split potion into multiple doses, if desired, then add the pieces of the person you wish to become.

# Wave your wand to complete the potion.<ref>''[[Pottermore]]''</ref>

# Wave your wand to complete the potion.<ref>''[[Pottermore]]''</ref>

==Appearance==

==Appearance==

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{{Quote|“Ooh, you look much tastier than Crabbe and Goyle, Harry,” said Hermione, before catching sight of Ron’s raised eyebrows, blushing slightly, and saying, “Oh, you know what I mean – Goyle’s potion looked like bogies.”|Before [[Hermione Granger]] took on Harry's appearance for the [[Battle of the Seven Potters]]|Harry Potter and the Deathly Hallows}}

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{{Quote|“Ooh, you look much tastier than Crabbe and Goyle, Harry,” said Hermione, before catching sight of Ron’s raised eyebrows, blushing slightly, and saying, “Oh, you know what I mean — Goyle’s potion looked like bogies.”|Before [[Hermione Granger]] took on Harry's appearance for the [[Battle of the Seven Potters]]|Harry Potter and the Deathly Hallows}}

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[[File:Polyjuice_potion.jpeg|thumb|Harry, Ron, and Hermione drinking Polyjuice Potion in their second year.]]

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A piece of the person who is to be imitated — usually hair — is needed for the transformation. Before this final ingredient is added, Polyjuice looks like thick, dark mud that bubbles slowly. Whenthepieceof the person to be imitated is added, however, the potion changes colour; it seems to react according to the nature of the person to be imitated, once even described as the 'essence' of the person.<ref name="COS">''[[Harry Potter and the Chamber of Secrets]]''</ref> Good-hearted people result in more attractive colours and tastes, while mean people cause the oppositeeffect. [[Harry Potter]]'s was a pure golden colour<ref name="DH">''[[Harry Potter and the Deathly Hallows]]''</ref>, whereas [[Gregory Goyle]]'s tasted like "overcooked cabbage"<ref name="COS" /> and "looked like bogies"<ref name=DH />, [[Bellatrix Lestrange]]'s tasted "disgusting, worse than [[Gurdyroot]]s" and [[Mafalda Hopkirk]]'s was a pleasant heliotrope colour<ref name="DH" />. It is likely that the taste differs from potion to potion.

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[[File:Polyjuice.gif|thumb|225px|HermioneaddingHarryPotter'shair to the potion before the [[Battle of the SevenPotters]]]]

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A piece of the person who is to be imitated — usually hair, but toenail clippings, [[dandruff]], or worse can be used — is needed for the transformation; apparently, the person must be alive when the piece is taken, as [[Bartemius Crouch Jr.|Barty Crouch Jr.]] kept [[Alastor Moody]] alive to continue harvesting his hair.

+

+

Before this final ingredient is added, Polyjuice looks like thick, dark mud that bubbles slowly. When the piece of the person to be imitated is added, however, the potion changes colour; it seems to react according to the nature of the person to be imitated, once even described as the 'essence' of the person.<ref name="COS">''[[Harry Potter and the Chamber of Secrets]]''</ref> Good-hearted people result in more attractive colours and tastes, while mean people cause the opposite effect. [[Harry Potter]]'s was a pure golden colour<ref name="DH">''[[Harry Potter and the Deathly Hallows]]''</ref>, whereas [[Gregory Goyle]]'s tasted like "overcooked cabbage"<ref name="COS" /> and "looked like bogies"<ref name="DH" />, [[Bellatrix Lestrange]]'s tasted "disgusting, worse than [[Gurdyroot]]s" and [[Mafalda Hopkirk]]'s was a pleasant heliotrope colour<ref name="DH" />. It is likely that the taste differs from potion to potion.

==Effects==

==Effects==

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{{Dialogue a-b|Mad-EyeMoody|Forthoseof you who haven'ttakenPolyjuicePotionbefore,fairwarning. Ittasteslikegoblinpiss.|Fred|Havealotofexperiencewiththat, doyou,Mad-Eye?...Justtryingtodefusethetension.|[[AlastorMoody]] and [[FredWeasley]] before the [[Battle of the Seven Potters]]|Harry Potter and the Deathly Hallows: Part 1}}

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{{Dialogue a-b-a|RemusLupin|I'msorryHarry, but I had to check. We've been betrayed. Voldemort knew that you were being moved tonight and the only people who couldhavetoldhimweredirectly involved in theplan. Youmighthavebeenan impostor.|Rubeus Hagrid|Sowhyaren'tyoucheckin'me?|You'rehalf-giant, Hagrid.ThePolyjuicePotionisdesignedforhuman useonly.|[[RemusLupin]] while checking [[HarryPotter]] after the [[Battle of the Seven Potters]]|Harry Potter and the Deathly Hallows}}

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[[File:Polyjuice_Potion.JPG|thumb|left|Instructionsonhowtomake the Polyjuice Potion seen in ''[[MostePotente Potions]]''.]]

The effects of a single dose last anywhere from ten minutes to twelve hours, depending on how well the potion has been brewed.<ref name="jknew">[[Pottermore]] - New from J. K. Rowling - Chapter 12, Moment 2 - Polyjuice Potion</ref>

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If a persondieswhileunderPolyjuicePotion, as [[BartemiusCrouchJr.'smother|Mrs. Crouch]]did, thentheywillretaintheformofwhoevertheyhavetransformedinto,ratherthanrevertingbacktotheiroriginalshape.<ref name="GOF">''[[Harry Potter and the Goblet of Fire]]</ref>

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The effects of a singledoselastanywherefromten minutes to twelve hours, dependingon how well the potion has been brewed.<ref name="jknew">[[Pottermore]]-New from J. K. Rowling- Chapter 12, Moment2-PolyjuicePotion</ref>Continueddrinkingpriortothetransformationwearingoffextendstheform'sduration until the nextdosageisrequired.<ref name="GOF">''[[Harry Potter and the Goblet of Fire]]''</ref> The complicity of the potion is such that the one Hermione brewed in her second year only lasted one hour per dosage.<ref name="COS" />

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If a person dies while under Polyjuice Potion, as [[Bartemius Crouch Jr.'s mother|Mrs. Crouch]] did, then they will retain the form of whoever they have transformed into, rather than reverting back to their original shape.<ref name="GOF" />

Polyjuice can be used by a person to transform into someone of the opposite gender.<ref name="DH" /> It appears to adapt to account for the age of the person being turned into, as well as any injuries they have acquired, as [[Bartemius Crouch Jr.|Barty Crouch, Jr.]] needed a [[Alastor Moody's magical eye|magical eye]] and wooden leg when he used the potion to turn into [[Alastor Moody]].<ref name="GOF" /> In addition, congenital conditions of the person will apparently be replicated, as [[Hermione Granger]] required [[spectacles]] to see clearly after turning into Harry Potter.<ref name="DH" />

Polyjuice can be used by a person to transform into someone of the opposite gender.<ref name="DH" /> It appears to adapt to account for the age of the person being turned into, as well as any injuries they have acquired, as [[Bartemius Crouch Jr.|Barty Crouch, Jr.]] needed a [[Alastor Moody's magical eye|magical eye]] and wooden leg when he used the potion to turn into [[Alastor Moody]].<ref name="GOF" /> In addition, congenital conditions of the person will apparently be replicated, as [[Hermione Granger]] required [[spectacles]] to see clearly after turning into Harry Potter.<ref name="DH" />

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[[File:Hermione.JPG|thumb|Hermione suffers from partial cross-species transfiguration due to including cat hair in her potion.]]

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[[File:Hermione polyjuice.jpg|thumb|235x235px|Hermione suffers from partial cross-species transfiguration due to including cat hair in her potion.]]

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The potion is complicated and can go awry. For example, when Hermione brewed Polyjuice in her second year, she intended to take the form of [[Millicent Bulstrode]], but she mistook a [[Millicent Bulstrode's cat|cat's]] hair for Millicent's. The resulting potion caused Hermione to partially transform into a cat. As the Polyjuice Potion cannot be used to successfully transform into an animal, Hermione's change did not reverse after an hour. She went to the [[hospital wing]] and did not recover until after the winter holidays.<ref name="COS" />

The potion is complicated and can go awry. For example, when Hermione brewed Polyjuice in her second year, she intended to take the form of [[Millicent Bulstrode]], but she mistook a [[Millicent Bulstrode's cat|cat's]] hair for Millicent's. The resulting potion caused Hermione to partially transform into a cat. As the Polyjuice Potion cannot be used to successfully transform into an animal, Hermione's change did not reverse after an hour. She went to the [[hospital wing]] and did not recover until after the winter holidays.<ref name="COS" />

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{{Dialogue a-b-a|Remus Lupin|I'm sorry Harry, but I had to check. We've been betrayed. Voldemort knew that you were being moved tonight and the onlypeoplewhocouldhavetold him were directly involved in the plan. You might have been an impostor.|Rubeus Hagrid|So why aren't you checkin' me?|You're half-giant, Hagrid. The Polyjuice Potion is designed for human useonly.|[[RemusLupin]]while checking [[Harry Potter]] after the [[Battle of the Seven Potters]]|Harry Potter and the Deathly Hallows}}Likewise, the potion cannot be used by a non-human or [[half-breed]] individual to turn into a human, as [[Remus Lupin]] informed the [[half-giant]] [[Rubeus Hagrid]].<ref>''Deathly Hallows'', Chapter 5</ref> However, it seems that individuals whose non-human ancestry is less than half can successfully use Polyjuice, as [[Half-Veela|quarter-Veela]] witch [[Fleur Delacour]] transformed into Harry Potter in [[1997]].<ref name="DH" /> However, it is also possible Lupin meant that a person cannot transform into a half-breed using Polyjuice Potion, but half-breeds themselves can.

{{Dialogue a-b-a-b|Harry|Look at his [[Malfoy family|family]]. The whole lot of them have been in Slytherin, he’s always boasting about it. They could easily be [[Salazar Slytherin|Slytherin]]’s descendants… But how do we prove it?|Hermione|There might be a way. Of course, it would be difficult. And dangerous, very dangerous. We’d be breaking about fifty school rules, I expect… What we’d need to do is to get inside the [[Slytherin Dungeon|Slytherin common room]] and ask Malfoy a few questions without him realising it’s us.|But that’s impossible.|No, it’s not. All we’d need would be some Polyjuice Potion...|Harry, Hermione and Ron planning|Harry Potter and the Chamber of Secrets}}

{{Dialogue a-b-a-b|Harry|Look at his [[Malfoy family|family]]. The whole lot of them have been in Slytherin, he’s always boasting about it. They could easily be [[Salazar Slytherin|Slytherin]]’s descendants… But how do we prove it?|Hermione|There might be a way. Of course, it would be difficult. And dangerous, very dangerous. We’d be breaking about fifty school rules, I expect… What we’d need to do is to get inside the [[Slytherin Dungeon|Slytherin common room]] and ask Malfoy a few questions without him realising it’s us.|But that’s impossible.|No, it’s not. All we’d need would be some Polyjuice Potion...|Harry, Hermione and Ron planning|Harry Potter and the Chamber of Secrets}}

In their second year, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]] came to suspect that [[Draco Malfoy]] was the [[Tom Riddle|Heir of Slytherin]]. To investigate this, Hermione suggested the use of Polyjuice Potion to enable them to take on the form of [[Slytherin]] students and question Malfoy. Masterminding the effort, Hermione obtained the advanced potion's recipe (by getting [[Gilderoy Lockhart|Professor Lockhart]] to sign a note authorizing her to borrow the book ''[[Moste Potente Potions]]'' from the library's [[Restricted Section]]), pilfered two of the rarer ingredients from [[Snape]]'s cupboards, and undertook the complex and lengthy brewing of the base Polyjuice Potion. She also directed how the trio were to acquire the final ingredients - hair from their targets - as well as clothing to complete the disguise. Ultimately, however, though Harry and Ron successfully assumed the appearances of [[Gregory Goyle|Goyle]] and [[Vincent Crabbe|Crabbe]] respectively, Hermione's own attempt to take on the guise of [[Millicent Bulstrode]] went awry when Hermione used a cat hair that she had mistaken for Millicent's.<ref name="COS" />

+

+

In their second year, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]] came to suspect that [[Draco Malfoy]] was the [[Tom Riddle|Heir of Slytherin]]. To investigate this, Hermione suggested the use of Polyjuice Potion to enable them to take on the form of [[Slytherin]] students and question Malfoy. Masterminding the effort, Hermione obtained the advanced potion's recipe (by getting [[Gilderoy Lockhart|Professor Lockhart]] to sign a note authorizing her to borrow the book ''[[Moste Potente Potions]]'' from the library's [[Restricted Section]]), pilfered two of the rarer ingredients from [[Snape]]'s cupboards, and undertook the complex and lengthy brewing of the base Polyjuice Potion.

+

+

She also directed how the trio were to acquire the final ingredients — hair from their targets — as well as clothing to complete the disguise. Ultimately, however, though Harry and Ron successfully assumed the appearances of [[Gregory Goyle|Goyle]] and [[Vincent Crabbe|Crabbe]] respectively, Hermione's own attempt to take on the guise of [[Millicent Bulstrode]] went awry when Hermione used a cat hair that she had mistaken for Millicent's.<ref name="COS" />

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===1994-1995 school year===

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====Barty Crouch Jr.====

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{{Dialogue a-b|Seamus Finnigan|What's that he's drinking, do you suppose?|Harry Potter|I don't know, but I don't think it's pumpkin juice.|Harry and Seamus when they see Crouch drinking from the hip flask.|Harry Potter and the Goblet of Fire (film)}}When [[Bartemius Crouch Jr.|Barty Crouch Jr.]] was sent to [[Azkaban]] for life by [[Bartemius Crouch Sr.|his father]], his mother requested that her husband allow her to switch places to save their son. The switch was made with Mrs. Crouch and Barty Jr. each taking a dose of Polyjuice Potion with each other's hair. Mrs. Crouch was careful in drinking her remainder of the potion, until she died, so she could keep the prisoners fooled by maintaining her false appearance.

When [[Bartemius Crouch Jr.|Barty Crouch Jr.]] was sent to [[Azkaban]] for life by [[Bartemius Crouch Sr.|his father]], his mother requested that her husband allow her to switch places to save their son. The switch was made with Mrs. Crouch and Barty Jr. each taking a dose of Polyjuice Potion with each other's hair. Mrs. Crouch was careful in drinking her remaining of the potion, until she died, so she could keep the prisoners fooled by maintaining her false appearance.

BetweenSeptemberof [[1994]] and June of [[1995]], Barty Crouch Jr. used Polyjuice Potion to take on the appearance of [[Alastor Moody|Alastor"Mad-Eye"Moody]], Hogwarts' new [[Defence Against the Dark Arts]] professor, inorderto enter [[Harry Potter]] into the [[Triwizard Tournament]] as part of [[Tom Riddle|LordVoldemort]]'splot to return to power. Throughout the year, Crouchstolethe potion'singredientsfrom [[Severus Snape]]'s cupboards, leading Snape to suspect that Harry himselfwasbehindthetheft;hedrank the potion periodically from [[Alastor Moody's hip flask]], to prevent suspicions. Later that year, when Crouch cornered Harry,heforgot to take the potioninexcitement (ran out in the film version), and was eventually exposed.

−

Between September of [[1994]] and June of [[1995]], Barty Crouch Jr. used Polyjuice Potion to take on the appearance of [[Alastor Moody]], Hogwarts' new [[Defence Against the Dark Arts]] professor, in order to enter [[Harry Potter]] into the [[Triwizard Tournament]] as part of [[Tom Riddle|Lord Voldemort]]'s plot to return to power. Throughout the year, Crouch stole the potion's ingredients from [[Severus Snape]]'s cupboards, leading Snape to suspect that Harry himself was behind the theft; he drank the potion periodically from [[Alastor Moody's hip flask]], to prevent suspicions. Later that year, when Crouch cornered Harry, he forgot to take the potion in excitement (ran out in the film version), and was eventually exposed.

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===PlotagainstDumbledore===

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===1996-1997schoolyear===

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After[[Horace Slughorn]] showed a [[cauldron]] of the Polyjuice Potion to his first N.E.W.T. Potions class, [[Draco Malfoy]] stole some, and forced [[Gregory Goyle]] and [[Vincent Crabbe]] to use it continuously throughout the [[1996–1997 school year]]. They would stand watch outside the [[Room of Requirement]] disguised as young girls, while Malfoy repaired a [[Vanishing Cabinet]] inside, as part of his assignment to assassinate [[Albus Dumbledore]] and let [[Death Eaters]] into Hogwarts. Draco also imperioused Madam Rosemerta and Katie Bell so that they would help kill Dumbledore.

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====Plotagainst Dumbledore====

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After [[Horace Slughorn]] showed a [[cauldron]] of the Polyjuice Potion to his first N.E.W.T. Potions class, [[Draco Malfoy]] stole some, and forced [[Gregory Goyle]] and [[Vincent Crabbe]] to use it continuously throughout the [[1996–1997 school year]]. They would stand watch outside the [[Room of Requirement]] disguised as young girls, while Malfoy repaired a [[Vanishing Cabinet]] inside, as part of his assignment to assassinate [[Albus Dumbledore]] and let [[Death Eaters]] into Hogwarts.

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===Battleofthe Seven Potters===

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===1997-1998schoolyear===

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[[File:7-potters.jpg|thumb|right|200px|Harry and his six decoys before the Battle of the Seven Potters.]]

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====Battle of the Seven Potters====

{{Quote|Fourteen of us won’t be flying to Tonks’s parents. There will be seven Harry Potters moving through the skies tonight, each of them with a companion, each pair heading for a different safe house.|[[Alastor Moody]] on the plan to move Harry to safety in [[1997]]|Harry Potter and the Deathly Hallows}}

{{Quote|Fourteen of us won’t be flying to Tonks’s parents. There will be seven Harry Potters moving through the skies tonight, each of them with a companion, each pair heading for a different safe house.|[[Alastor Moody]] on the plan to move Harry to safety in [[1997]]|Harry Potter and the Deathly Hallows}}

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[[File:7-potters.jpg|thumb|230px|The Seven Potters|left]]

The [[Order of the Phoenix]] made use of Polyjuice in [[1997]] in order to safely remove Harry Potter from [[4 Privet Drive]] before his seventeenth birthday. Six people — [[Hermione Granger]], [[Ronald Weasley|Ron Weasley]], [[Fleur Delacour]], [[Fred Weasley|Fred]] and [[George Weasley]], and [[Mundungus Fletcher]] — impersonated Harry in order to act as diversions when they were [[Battle of the Seven Potters|ambushed by Death Eaters]] despite Harry's initial protests. Soon after, Harry himself used it to disguise himself as "Barny Weasley" at [[William Weasley|Bill Weasley]] and Fleur Delacour's [[Wedding of Bill Weasley and Fleur Delacour|wedding]].<ref name="DH" />

The [[Order of the Phoenix]] made use of Polyjuice in [[1997]] in order to safely remove Harry Potter from [[4 Privet Drive]] before his seventeenth birthday. Six people — [[Hermione Granger]], [[Ronald Weasley|Ron Weasley]], [[Fleur Delacour]], [[Fred Weasley|Fred]] and [[George Weasley]], and [[Mundungus Fletcher]] — impersonated Harry in order to act as diversions when they were [[Battle of the Seven Potters|ambushed by Death Eaters]] despite Harry's initial protests. Soon after, Harry himself used it to disguise himself as "Barny Weasley" at [[William Weasley|Bill Weasley]] and Fleur Delacour's [[Wedding of Bill Weasley and Fleur Delacour|wedding]].<ref name="DH" />

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===Infiltration of the Ministry and GringottsBreak-in===

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====Infiltration of the Ministry ofMagic====

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[[File:Infiltration.png|thumb|250px|From left to right: [[Hermione Granger]] (disguised as [[Mafalda Hopkirk]]), [[Harry Potter]] (disguised as [[Albert Runcorn]]), and [[Ronald Weasley|Ron Weasley]] (disguised as [[Reginald Cattermole]])]]The trio used Polyjuice that they stole from Moody to [[Infiltration of the Ministry of Magic|infiltrate the Ministry of Magic]] to search for [[Salazar Slytherin's Locket]] in September of [[1997]]. Harry, Ron and Hermione disguised themselves as [[Albert Runcorn]], [[Reginald Cattermole]], and [[Mafalda Hopkirk]], respectively.

The trio used Polyjuice that they stole from Moody to [[Infiltration of the Ministry of Magic|infiltrate the Ministry of Magic]] to search for [[Salazar Slytherin's Locket]] in September of [[1997]]. Harry, Ron and Hermione disguised themselves as [[Albert Runcorn]], [[Reginald Cattermole]], and [[Mafalda Hopkirk]], respectively.

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====Gringotts Break-in====

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{{Quote|Bellatrix Lestrange was striding across the lawn toward them, accompanied by [[Griphook]]... Though Harry knew it was [[Hermione]], he could not suppress a shiver of loathing.|Hermione disguised as Bellatrix |Harry Potter and the Deathly Hallows }}

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[[File:Bellatrix_in_Gringotts.jpg|thumb|left|Hermione using Polyjuice to impersonate Bellatrix at Gringotts]]

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[[File:Bellatrix_in_Gringotts.jpg|thumb|140px|Hermione using Polyjuice to impersonate Bellatrix at Gringotts|left]]

The [[1998|following year]], Hermione used the remaining Polyjuice Potion again as part of the trio's plan to [[Break-in of Gringotts Wizarding Bank (1998)|break in]] to [[Gringotts Wizarding Bank|Gringotts]] in order to retrieve [[Helga Hufflepuff's Cup]] from the [[Lestrange Vault]]. Using a strand of [[Bellatrix Lestrange]]'s hair that had fallen on her sweater while Bellatrix [[Battle of Malfoy Manor|interrogated her at Malfoy Manor]], Hermione assumed her form.<ref name="DH" /> However, there wasn't enough, so Ron had to simply use cosmetic design to disguise himself. The effects of the potion were washed away by the [[Thief's Downfall]] at the bank.

The [[1998|following year]], Hermione used the remaining Polyjuice Potion again as part of the trio's plan to [[Break-in of Gringotts Wizarding Bank (1998)|break in]] to [[Gringotts Wizarding Bank|Gringotts]] in order to retrieve [[Helga Hufflepuff's Cup]] from the [[Lestrange Vault]]. Using a strand of [[Bellatrix Lestrange]]'s hair that had fallen on her sweater while Bellatrix [[Battle of Malfoy Manor|interrogated her at Malfoy Manor]], Hermione assumed her form.<ref name="DH" /> However, there wasn't enough, so Ron had to simply use cosmetic design to disguise himself. The effects of the potion were washed away by the [[Thief's Downfall]] at the bank.

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==List of Polyjuice transformations==

==List of Polyjuice transformations==

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{|border="1" class="wikitable"

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{| class="wikitable" border="1"

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!width="15%"|Disguised individual

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!width="15%"|Disguised individual

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!width="15%"|Assumed identity

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!width="15%"|Assumed identity

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!width="10%"|Date

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!width="10%"|Date

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!width="30%"|Flavour/Appearance

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!width="30%"|Flavour/Appearance

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!width="30%"|Reason

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!width="30%"|Reason

|-

|-

|[[Bartemius Crouch Jr.|Barty Crouch Jr.]]

|[[Bartemius Crouch Jr.|Barty Crouch Jr.]]

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|-

|-

|[[Bartemius Crouch Jr.|Barty Crouch Jr.]]

|[[Bartemius Crouch Jr.|Barty Crouch Jr.]]

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|[[Alastor Moody]]

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|[[Alastor Moody]]

|[[1994]]-[[1995]]<ref name="GOF" />

|[[1994]]-[[1995]]<ref name="GOF" />

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|

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|Orders from Voldemort

|To infiltrate [[Hogwarts School of Witchcraft and Wizardry|Hogwarts]].

|To infiltrate [[Hogwarts School of Witchcraft and Wizardry|Hogwarts]].

|To keep lookout for [[Draco Malfoy]] while he worked on fixing the [[Vanishing Cabinet|vanishing cabinet]] inside the [[Room of Requirement]].

|To keep lookout for [[Draco Malfoy]] while he worked on fixing the [[Vanishing Cabinet|vanishing cabinet]] inside the [[Room of Requirement]].

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|-

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|Used to access the [[Lestrange Vault|Lestranges' vault]] in Gringotts.

|Used to access the [[Lestrange Vault|Lestranges' vault]] in Gringotts.

|}

|}

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==Etymology==

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The name "Polyjuice" probably comes from the Greek ''poly'', meaning "many". This is supported by the fact that in the Spanish and Brazilian Portuguese translations, it is called, respectively, ''"multijugos''" and ''"polissuco,''" both literally meaning "multi juice."

==Behind the scenes==

==Behind the scenes==

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*The various adaptations of the series add multiple ingredients not present in the canonical potion recipe, such as [[Sal Ammoniac]], [[Mercury and Mars]], [[Cherry (fruit)|cherries]] and even [[urine]].

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*The various adaptations of the series add multiple ingredients not present in the canonical potion recipe, such as [[Sal Ammoniac]], [[Mercury and Mars]], [[Cherry (fruit)|cherries]] and even [[urine]]. Notably, however, the instructions given in the ''Perfect Potions'' game in the ''[[The Road to Hogwarts Sweepstakes]]'' include only those ingredients originally given in the novel.

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*Inthe film adaptations of ''[[HarryPotterand the Chamber of Secrets (film)|Harry Potter and the Chamber of Secrets]]'',''[[HarryPotterand the Deathly Hallows: Part 1]]'', and ''[[Harry Potter and the Deathly Hallows: Part 2]]'', Polyjuice Potion does not cause the drinker's voice to change as well as their appearance. This was most likely done to avoid confusing the audience due to the change in appearance. However, Barty Crouch Jr.'s voice does change to Moody's in ''[[Harry Potter and the Goblet of Fire (film)]]''. However, it is possible he could have just been imitating Moody's voice or there was no need to make this change since the fake Moody was not exposed as Crouch Jr. until the end of the film. It does say, however, in the [[Harry Potter and the Chamber of Secrets|''Chamber of Secrets'' book]], that Harry, Ron and Hermione's voices changed after taking it. It also seemed like it was very painful when Crouch changed back.

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* [[PrimumensMelissae]] iscreatedduring the process of brewing this potion.

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*Thename"Polyjuice"probablycomesfromtheGreek ''poly'', meaning"many".Thisissupportedby the factthat in the Spanishtranslations, itiscalled''"multijugos,''"literally"multijuice."

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* Despite its difficulty of brewing and overall rareness of its ingredients, Polyjuice Potionisusedandmentioned quite a few times. The [[Trio]] uses it numerous times, particularly in ''[[Harry Potter and the Deathly Hallows]]'', asdomembersoftheOrder of the Phoenix.By the end of theseries, almosteverysinglemain or supporting character has used itatleastonce.

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*InthePlayStation2andXbox[[HarryPotter and the Prisoner of Azkaban(videogame)|videogameadaptations]]of''[[HarryPotterandthePrisonerofAzkaban]],''[[DracoMalfoy]]uses the potiontoturnintoRontotrickHarryintofollowinghimintoatrapwhiletrying to find[[Sirius Black]].

*In ''[[LEGO Harry Potter:Years1-4]]'', PolyjuicePotionisusedtoturnintoanyplayablecharacteryouhave unlocked (e.g. if you needed to get into theSlytherinCommonRoom,youcould use Polyjuice to turn into Voldemort, MarcusFlint, or any other Slytherin). It cannot use the potionuntiltheplayer has completed the third level of TheChamberOfSecrets, "Crabbe and Goyle." Ingredients to make the potion include hair, two cherries, and a green apple. The potion is found rarely throughout the main-story line, but is often found in and around Hogwarts and in Bonus Levels. You know it is a Polyjuice Cauldron because they are the only potion's cauldron that is gold. Outside of [[Madam Malkin's Robes for All Occasions]] is onethat you do not have to make. This cauldron is here so that theplayercantest out characters that they have created and/orpurchased.

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*In ''Harry Potter andthe Deathly Hallows'', Roncomments"IknewGinnywaslyingaboutthat[[tattoo]]"aftertransforming into Harryandobservinghisbarechest, suggestingthat the PolyjuicePotioniscapable of replicatingcosmeticchangesmade to a person's body. It is possible,however, that Ronwassimplybeingfacetious.

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*In ''[[Harry Potter and the DeathlyHallows:Part1]]'',beforethe[[Battleof the Seven Potters]], [[Alastor Moody]] warns the people taking the potion that it tastes like, "[[goblin]] piss".

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*In the filmadaptionsinwhichPolyjuicePotionisused:

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*In ''[[Harry Potter and the Deathly Hallows: Part 1]]'', Harry and Hermionedonotdisguisethemselves with Polyjuice Potion for their trip to [[Godric's Hollow]]on [[24December]], [[1997]].

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** In the film adaptations of ''[[Harry Potter and the Chamber of Secrets (film)|Harry Potter and the Chamber of Secrets]]'', ''[[Harry Potter and the Deathly Hallows: Part 1]]'', and ''[[Harry Potter and theDeathlyHallows:Part2]]'', Polyjuice Potion does not cause the drinker's voice to change as well as their appearance. This was most likely done to avoid confusing the audience due to the change in appearance. However, Barty Crouch Jr.'s voicedoeschange to Moody's in ''[[HarryPotter and the Goblet of Fire (film)]]''. However, it is possible he could have just been imitating Moody's voice or there was no need to make this change since the fake Moody was not exposed as Crouch Jr. until the end of the film. It does say, however, in the [[Harry Potter and the Chamber of Secrets|''Chamber of Secrets'' book]], that Harry, Ron and Hermione's voices changed after taking it. It also seemed like it was very painful when Crouch changed back.

** In ''[[Harry Potter and the Deathly Hallows: Part 1]]'', beforethe[[BattleoftheSevenPotters]],[[AlastorMoody]]warnsthepeople taking the potionthatittasteslike, "[[goblin]]piss",suggestingtheflavourdoesnot change according to the person intended to be imitated, and that it instead tastes disgusting in the course of the film series.

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*In ''[[Harry Potter and the Deathly Hallows: Part 1]]'', Harry does not usethe Polyjuice Potion tochangeintoa red haired [[Muggle]] boy for [[Weddingof William Weasley and Fleur Delacour|Bill and Fleur's wedding]], he stays himself.

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** In ''[[Harry Potter and the Deathly Hallows: Part 1]]'', Harry and Hermione do not disguisethemselves with Polyjuice Potion fortheirtripto [[Godric's Hollow]] on [[24December]], [[1997]].

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*Consideringits difficulty of brewing and overall rareness of its ingredients, Polyjuice Potion is used and mention quite a few times. The [[Trio]] uses it numerous times, particularly in ''[[Harry Potter and the Deathly Hallows]]'', asdomembersof the OrderofthePhoenix.Bytheendoftheseries,almosteverysinglemainorsupportingcharacterhasuseditatleastonce.

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**In ''[[Harry Potter and the Deathly Hallows: Part 1]]'', Harrydoesnotuse the PolyjuicePotiontochangeintoaredhaired[[Muggle]]boyfor[[WeddingofWilliamWeasleyandFleurDelacour|BillandFleur's wedding]],hestayshimself.

* InthePlayStation2andXbox[[HarryPotterandthePrisonerofAzkaban(videogame)|videogameadaptations]]of''[[HarryPotterandthePrisonerof Azkaban]],''[[DracoMalfoy]]uses the potiontoturnintoRontotrickHarryintofollowinghimintoatrapwhiletrying to find[[Sirius Black]]. He even says "Polyjuice Potion......I think we're even now" suggesting he found out that he and Ron used the potion to disguise as his two lackeys to get into the Slytherin Common Room

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*[[PrimumensMelissae]] is createdduring the process of brewingthis potion.

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* In ''[[LEGOHarryPotter: Years 1-4]]'', Polyjuice Potion is usedto turn into any playable character you have unlocked (e.g. if you needed to get into the Slytherin Common Room, you could use Polyjuice to turn into Voldemort, Marcus Flint, or any other Slytherin). It cannot use the potion until the player has completed the third level of TheChamber Of Secrets, "Crabbe and Goyle." Ingredients to make the potion include hair, two cherries, and a green apple. The potion is found rarely throughout the main-story line, but is often found in and around Hogwarts and in Bonus Levels. You know it is a Polyjuice Cauldron because they are the only potion's cauldron that is gold. Outside of [[Madam Malkin's Robes for All Occasions]] is one that you do not have to make. This cauldron is here so that the player can test out characters that they have created and/or purchased.

"Immediately, his insides started writhing as though he'd just swallowed live snakes — doubled up, he wondered whether he was going to be sick — then a burning sensation spread rapidly form his stomach to the very ends of his fingers and toes — next, bringing him gasping to all fours, came to a horrible melting feeling, as the skin all over his body bubbled like hot wax — and before their eyes, his hands began to grow, the fingers thickened, the knuckles were bulging like bolts — his shoulders stretched painfully and a prickling on his forehead told him that his hair was creeping down toward his eyebrows — his robes ripped as his chest expanded like a barrel bursting its hoops — his feet were agony in shoes four sizes too small —"

Polyjuice Potion is a potion that allows the drinker to assume the form of someone else. It's a complicated and challenging potion that even adult witches and wizards struggle to brew correctly[1]. The potion is incredibly advanced and has two separate parts that contain steps for each part, when brewing is complete the potion has to stew for a month before usage.[2]

Independent of its actual brewing process, the Polyjuice Potion requires a good deal of preparation prior to making it. For example, the lacewing flies must be stewed for twenty-one days prior to making the potion, and only fluxweed picked at the full moon is acceptable. The total process takes approximately one month to complete.

"“Ooh, you look much tastier than Crabbe and Goyle, Harry,” said Hermione, before catching sight of Ron’s raised eyebrows, blushing slightly, and saying, “Oh, you know what I mean — Goyle’s potion looked like bogies.”"

A piece of the person who is to be imitated — usually hair, but toenail clippings, dandruff, or worse can be used — is needed for the transformation; apparently, the person must be alive when the piece is taken, as Barty Crouch Jr. kept Alastor Moody alive to continue harvesting his hair.

Before this final ingredient is added, Polyjuice looks like thick, dark mud that bubbles slowly. When the piece of the person to be imitated is added, however, the potion changes colour; it seems to react according to the nature of the person to be imitated, once even described as the 'essence' of the person.[2] Good-hearted people result in more attractive colours and tastes, while mean people cause the opposite effect. Harry Potter's was a pure golden colour[4], whereas Gregory Goyle's tasted like "overcooked cabbage"[2] and "looked like bogies"[4], Bellatrix Lestrange's tasted "disgusting, worse than Gurdyroots" and Mafalda Hopkirk's was a pleasant heliotrope colour[4]. It is likely that the taste differs from potion to potion.

Remus Lupin: "I'm sorry Harry, but I had to check. We've been betrayed. Voldemort knew that you were being moved tonight and the only people who could have told him were directly involved in the plan. You might have been an impostor."

Rubeus Hagrid: "So why aren't you checkin' me?"

Remus Lupin: "You're half-giant, Hagrid. The Polyjuice Potion is designed for human use only."

The effects of a single dose last anywhere from ten minutes to twelve hours, depending on how well the potion has been brewed.[5] Continued drinking prior to the transformation wearing off extends the form's duration until the next dosage is required.[6] The complicity of the potion is such that the one Hermione brewed in her second year only lasted one hour per dosage.[2]

If a person dies while under Polyjuice Potion, as Mrs. Crouch did, then they will retain the form of whoever they have transformed into, rather than reverting back to their original shape.[6]

Polyjuice can be used by a person to transform into someone of the opposite gender.[4] It appears to adapt to account for the age of the person being turned into, as well as any injuries they have acquired, as Barty Crouch, Jr. needed a magical eye and wooden leg when he used the potion to turn into Alastor Moody.[6] In addition, congenital conditions of the person will apparently be replicated, as Hermione Granger required spectacles to see clearly after turning into Harry Potter.[4]

Hermione suffers from partial cross-species transfiguration due to including cat hair in her potion.

The potion is complicated and can go awry. For example, when Hermione brewed Polyjuice in her second year, she intended to take the form of Millicent Bulstrode, but she mistook a cat's hair for Millicent's. The resulting potion caused Hermione to partially transform into a cat. As the Polyjuice Potion cannot be used to successfully transform into an animal, Hermione's change did not reverse after an hour. She went to the hospital wing and did not recover until after the winter holidays.[2]

Harry: "Look at his family. The whole lot of them have been in Slytherin, he’s always boasting about it. They could easily be Slytherin’s descendants… But how do we prove it?"

Hermione: "There might be a way. Of course, it would be difficult. And dangerous, very dangerous. We’d be breaking about fifty school rules, I expect… What we’d need to do is to get inside the Slytherin common room and ask Malfoy a few questions without him realising it’s us."

Harry: "But that’s impossible."

Hermione: "No, it’s not. All we’d need would be some Polyjuice Potion..."

She also directed how the trio were to acquire the final ingredients — hair from their targets — as well as clothing to complete the disguise. Ultimately, however, though Harry and Ron successfully assumed the appearances of Goyle and Crabbe respectively, Hermione's own attempt to take on the guise of Millicent Bulstrode went awry when Hermione used a cat hair that she had mistaken for Millicent's.[2]

— Harry and Seamus when they see Crouch drinking from the hip flask.[src]

When Barty Crouch Jr. was sent to Azkaban for life by his father, his mother requested that her husband allow her to switch places to save their son. The switch was made with Mrs. Crouch and Barty Jr. each taking a dose of Polyjuice Potion with each other's hair. Mrs. Crouch was careful in drinking her remainder of the potion, until she died, so she could keep the prisoners fooled by maintaining her false appearance.

The lack of suspicion in anyone in all these incidents leads one to the understanding that Polyjuice Potion is very uncommon. Granted, Severus Snape knew someone was stealing the ingredients from his cupboards and suspected Harry Potter, but that is more indicative of Snape's eagerness to blame Harry for anything than any actual guilt.

The name "Polyjuice" probably comes from the Greek poly, meaning "many". This is supported by the fact that in the Spanish and Brazilian Portuguese translations, it is called, respectively, "multijugos" and "polissuco," both literally meaning "multi juice."

Despite its difficulty of brewing and overall rareness of its ingredients, Polyjuice Potion is used and mentioned quite a few times. The Trio uses it numerous times, particularly in Harry Potter and the Deathly Hallows, as do members of the Order of the Phoenix. By the end of the series, almost every single main or supporting character has used it at least once.

While previous evidence seemed to suggest that the effects of a single dose last for an hour or longer if a larger dose is used, Pottermore indicates that the length of the effect is based entirely on the quality of brewing, ranging anywhere from ten minutes to twelve hours.[5]

In Harry Potter and the Deathly Hallows, Ron comments "I knew Ginny was lying about that tattoo" after transforming into Harry and observing his bare chest, suggesting that the Polyjuice Potion is capable of replicating cosmetic changes made to a person's body. It is possible, however, that Ron was simply being facetious.

In LEGO Harry Potter: Years 1-4, Polyjuice Potion is used to turn into any playable character you have unlocked (e.g. if you needed to get into the Slytherin Common Room, you could use Polyjuice to turn into Voldemort, Marcus Flint, or any other Slytherin). It cannot use the potion until the player has completed the third level of The Chamber Of Secrets, "Crabbe and Goyle." Ingredients to make the potion include hair, two cherries, and a green apple. The potion is found rarely throughout the main-story line, but is often found in and around Hogwarts and in Bonus Levels. You know it is a Polyjuice Cauldron because they are the only potion's cauldron that is gold. Outside of Madam Malkin's Robes for All Occasions is one that you do not have to make. This cauldron is here so that the player can test out characters that they have created and/or purchased.

Polyjuice Potion also returns in LEGO Harry Potter: Years 5-7 wherein it is used in the same manner as it was in the first game. However, in this game Polyjuice Potion can be found in all cauldrons during free-play, and is unlocked after completing the first level of The Deathly Hallows Part 1, "The Seven Potters".